Road-scraper



. CHASE AND F. A. FLEMING ROAD SCHAPER.

APPLlcATloN FILED 050.16. 1916.

., n. WW 9! "m m J v m Um hH mm m n am afi m Wu n Pa m Mn h 5F S. M. CHASE AND F. A. FLEMING.

ROAD SCRAPER.

APPLICATION FILED DEC. 16. 19m.

. fi w m 2 \Tmm 7mm R mm f 1.. w A w %m fi w n v F t r. L t

M rna?! UNITED. STATES PATENT OFFICE.

SHERWOOD M. -CHASE ALNZD A. FLEMING, -OF. COLUMBUS, OHIO, ASSIG'NORS TO ITHE GHALSE 'FOUND'RYAND vMAN'UFACTURIN'Gr COMPANY, OF COLUMBUS, OHIO, A

" conronlrrron or "OHIO.

ROAD-SGRAPER.

To all whom it may concern:

Be it known that we, SHERWOOD M. CHASE and FRANK A. FLEMING, citizens of the United States, residing at Columbus5 in the county of Franklin andState ofOhio, have invented certain new and useful Improvements in Road-Scrapers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to road scrapers.

The'o'bject'of the invention is to smooth and grade a roadway at one operation in order to fill the low spots in the road and remove the high spots, presenting a finished highway after the machine embodying our invention has passed over the road.

In particular our invention relates to a novel method of attaching the plow to the main frame-and relieving the strain, incident to the work of-the plow, from the frame. It is a furtherobject'of this feature of our invention to place the burden of work upon the nose of the plow where it properly belongs.

It is another object of our invention to provide a novel raising and lowering means of the mainframe with the accompanying scraper blades and attendant mechanism. The object of so raising and loweringthe frame is to regulate the depth of cut of the cutting blades-or scrapersand to remove the scrapers entirely from the surface of the roadway in case it is necessary to do so to transport the machine from place toplace.

It is a further object of our invention to provide a unique steering means for this road scraping machine which can be readily handled by a single operator who can both operate the steering mechanism and operate the raising and lowering mechanism from one vantage point so situated that the operation of the entire mechanism can be viewed by the saidcoperator.

In the accompanying drmvings, Figure 1 is atop plan viewofthe entire machine; Fig. '2 is a side elevation ofthe ,machine viewed from the right handside; Fig. 3 is a rear elevation in detail of the mechanism utilized to operate-the steering apparatus; Fig. 4 is an end view of Fig. 3 taken at right angles to the point of view of Fig. 3; and Fig. '5 is a'detail top plan view of the plow.

In'Fig. 1, 1 is the tongue which-attaches the machine to the motive'power to move it Speci-ficationof Letters Patent. Patented'Feb. 17, 1920. Application filed December 16, 1916. Serial No. 137,289.

alongv the highway. 2., 2 are small wheels of the forward truck which supports the forward end of-the machine. 8, 3 are the longitudinally extending members which connect this truck to the main frame of the scraper. 4', 4 are the blades constituting theplow members uniting at the point 5 in the nose ofthe plow. 6 is a spacing member determining'the angle at which the members 4, 4: of-theplow shall be placed to one another. 7 is the arm which determines the depth of cut of the plow member through the link 8 attachedto the plow at 9. This arm 7 is attached to the cross member 10 between the members 3, 3 at the point 11. The other end of 7 is placed between the rungs of a ladder 12 in order to fix it at any particularly desired height.

13,13indica-te the major longitudinal frame members of the scraper, 14 the arch bar which supports the outlying. longitudinal members 15 15 and which. serves to raise and lower saidmembers together with the accompanying scraper blades 16, 16.

These scraper blades are pivotally connected at the points 17 to the members 15 and pivotally connected to the majorlongitudinal frame 13, 13. at the points 18,18. A handwheel 19 and screw 20 working in a block are utilized. to raise and lower the cross member 14:. and the mechanism which is attachedv thereto.

' 21 is the operators platform upon which he stands to steer the machine and to raise and lower it- 22 22 represent the respective converging lever members joined together at 23 .andi attached at 24, 24 to the jaCkaXle 25 supported by the wheels 26, 26. The lastmentioned I wheels are the main ground wheels upon which the machine rides and which are used to steer it from side to side through the guiding levers 22. 28 is the fulcrum point about which the jack axle and wheels pivot togetherwith the guiding lever 22.. The raising. and lowering means 27 for-ms a part ofthis pivotal connection. This pivotal point is a fifth wheel for the machine. 29 is a pivotal point between the linlri30which is attached to the main longi tudinal frame at 31 .and the raising and lowering means 27. This link is pivotally connected to the major longitudinal frame at the point .31, thus. enabling some degree of limitedmovement of the link'with respect to the main frame and with respect to the raising and lowering means when said lastmentioned means is operated and placed in a varying relation to the major longitudinal frame.

In Figs. 3 and 4 the detail mechanism for steering can be seen. The lever 32 has connected to it a link 33 at the pivotal point 34. This link 33 is pivotally connected to the eye 35 at the point 36. This eye is in turn bolted to the T-shaped member 22 at the rear end thereof. The depending flange 37 of bar 22 fits into the slots 38, 38 in the cross member 39, thus serving to positively position bar 22 at any desired point. The flange 37 of bar 22 is lifted out of the slots 38, 38 by the foot lever 40 pivoted at 41 to the cross member 39. This lever is operated by the foot pedal 42. The operator can depress the foot pedal 42, thus: lifting the opposite end of the lever 40 and lifting the depending fiange 37 out of the slot 38, enabling the operator to move the lever 32, shifting the member 22 from one side to the other and thus in turn shifting the ack axle 25 and the wheels 26, 26 to steer the machine from one side of the road to the other. The lever 32 is pivoted at the point 44 to a bracket 43 which is bolted to the major longitudinal members 13. The swinging of this guiding mechanism is on the fifth wheel aforementioned and is not disturbed by the raising and lowering of the mechanism.

Referring to Fig. 2, the raising and lowering means 27 is attached at its upper end at 45 to the pulley 46 through which .runs a cable 47 around a lower pulley 48 attached at 49 to the major longitudinal frame members 13, 13. This cable 47 is then wound on the drum 5O operated by the hand wheel 51 and located within easy reach of the attendant stationed on the platform 21. To lift the entire grader it is necessary to wind the cable 47 on the drum 50 and shorten the distance between the upper ends of the members 27 and the major longitudinal frame members 13, 13. This causes the members 27 to pivot around the axis of the jack axle 25. The lower end of 27 is connected to the link 30 at the point 29. The link 30 is con nected to the major longitudinal frame members 13, 13 at 31.

With particular reference to the push bar utilized on the plow, see Fig. 5, where the construction is shown in detail, Fig. 5 shows the nose of the plow members 4, 4; 52 is the cross member near the nose of the plow in which is pivoted the push bar 53 at the point 54. This push bar is bolted to the rear spacer member 6 at the polnt 55. This rear spacer member abuts the ends of the major longitudinal frame members 13, 1.3 and extends at right angles to said members. This spacer bar 53 thereby takes u the strain directly upon the longltudina frame members and serves to put the major portion of the strain, particularly on hard roads, upon the nose of the plow, permitting the pushing of the plow from the point or nose rather than from the rear end; The entire strain is transmitted through the strongest portion of the machine, namely, the members lying adjacent to the longitudinal axis of the grader. The rear end of this plow push bar 53 is connected to the longitudinal frame members at a height which is usually established as the height of the grade desired. The front end of the plow at 5 is raised and lowered by the lever 7 and the accompanying mechanism.

While 'we have shown and described one embodiment of the invention it will be understood that the same has been chosen for purposes of illustration only and that we do not desire to be limited to the details of construction shown and described, for obvious modifications will occur to one skilled in the art.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is

1. In a road grader, the combination, with longitudinal frame members, means for sup porting said members, said members supporting at one end thereof a plow and at the sides thereof a plurality of scrapers, means carried by said members and adjustable to a plurality of predetermined positions to divert the direction of travel of said first-mentioned supporting means, thereby diverting the direction of movement of said longitudinal frame members and the'parts supported thereby.

2. In a road grader, the combination, with longitudinal frame members, means for supporting said members, said members supporting at one end thereof a plow and at the sides thereof a plurality of scrapers, separate means carried by said longitudinal frame to raise and lower, respectively, said plow and scrapers, a transverse frame member and a lever coiiperating therewith and adjustable to a plurality of predetermined positions relative to said transverse frame to steer the scraper.

3. In a road grader, the combination, with a longitudinal frame, a shaft pivotally supporting the frame, said frame supporting at one end thereof, a plow and at the sides thereof a plurality of scrapers, said plow and scrapers normally moving forward in planes parallel to the plane of movement of said longitudinal frame, means carried by said shaft and controlled by a lever secured to said frame to divert the direction of movement of said frame and said parts supported thereby, and to maintain the general direction of movement from a plurality of predetermined positions.

4. In a road grader, the combination, with a longitudinal frame, means to support the frame, said frame supporting at the sides thereof a plurality of scrapers adapted to have a variable angular relation to said frame, steering members attached to said supporting means adapted to be adapted to a plurality of predetermined positions to govern the direction of movement ofsaid frame and scrapers, and means carried by said frame to change the angular relation of the scrapers.

5. In a road grader, the combination, with a frame, wheels, and a shaft supporting the frame, a plurality of scrapers attached to the sides of said frame and adapted to move in planes parallel to the plane of movement of said'frame, a steering frame carried by said shaft and adjustable laterally to a plurality of predetermined positions to divert the direction of travel of said wheels, thereby changing the direction of movement of said frame and scrapers.

6. In a road grader, the combination, with a frame, wheels and a shaft supporting the frame, a plurality of scrapers arranged in pairs and attached to opposite sides of said frame, a steering element carried by said shaft and adjustable laterally and locked in any one of a plurality of fixed positions relative to said frame whereby to divert the direction of travel of said wheels, thereby changing the direction of movement of said frame and scrapers.

'4'. In a road grader, the combination, with a frame, wheels and a shaft supporting the frame, a plurality of scrapers arranged in pairs and attached in angular relation to the side of said frame, means to change said angular relation, and means carried by said shaft cooperating with means carried by the frame and adjustable to a plurality of fixed positions to divert the direction of travel of said wheels, thereby changing the direction of movement of said frame and scrapers.

8. In a road working machine, means for supporting the machine on the ground, a frame, a device for bodily raising and lowering said frame relatively to said supporting means, a main) frame and actuating means thereon for said device upon the main frame, a member connected to said supporting means and extending to a point adjacent the frame and cooperating devices on the member and frame for moving said supporting means to a plurality of fixed positions for steering.

9. In a road working machine, means for supporting the machine on the ground, a frame located centrally below said supporting means, raising and lowering devices mounted on said supporting means and connected to said frame, a member connected to said supporting means and extending to a point adjacent the frame, and a lever and cooperating devices on the member and frame for moving said supporting means to a plurality of predetermined positions for steering.

10. In a road working machine, a lever provided with a fifth wheel bearing, an axle provided with wheels and rotatably mounted on said bearing, a main frame connected to said lever, means for adjusting said frame through the instrumentality of said lever, and means for moving said axle around said fifth wheel to a plurality of fixed positions as an axis for steering.

In testimony whereof, we affix our signatures.

S. M. CHASE. FRANK A. FLEMING. 

